US3867487A - Carburetor for internal combustion engines - Google Patents

Carburetor for internal combustion engines Download PDF

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Publication number
US3867487A
US3867487A US417674A US41767473A US3867487A US 3867487 A US3867487 A US 3867487A US 417674 A US417674 A US 417674A US 41767473 A US41767473 A US 41767473A US 3867487 A US3867487 A US 3867487A
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United States
Prior art keywords
induction pipe
wall surface
carburetor
passage means
internal combustion
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US417674A
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English (en)
Inventor
Hiromitsu Matsumoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
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Yamaha Motor Co Ltd
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Publication date
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/08—Other details of idling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M33/00—Other apparatus for treating combustion-air, fuel or fuel-air mixture
    • F02M33/02—Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel
    • F02M33/04—Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel returning to the intake passage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/55—Reatomizers

Definitions

  • the present-invention relates to a carburetor for internal combustion engines, and more particularly to an improved carburetor which has excellent characteristics of carburetion in terms of complete atomization of the fuel attainable in starting, 'idling or low-load operation of the engine. j
  • the low-speed fueling or idling system incorporated in the prior art carburetor includes an idle port and by-pass ports in communication with the float chamber via a pilot jet, those ports being opened in the throttle bore or induction pipe adjacent the throttle valve.
  • the throttle valve is closed or slightly opened for idling, starting or low-load running of the engine, the fuel with breeding air is discharged in'the induction pipe through the idle port or by-pass ports.
  • This invention is directedto eliminate the above prior art drawbacks by providing a carburetor for internal combustion engines of the type comprising an induction pipe horizontally arranged downstream of the Venturi portion, a butterfly-type throttle valve, and an idle port on the upper wall of the induction pipe being opened in the induction pipe adjacent the position assumed by the topperipheral edge of the throttle valve when the valve is closed or slightly opened, chara'cterized by the provision of passage means formed wall surface of the induction pipe in the downstream direction and conduct said flow of fuel downwardlyand further passage means formed around the journal portions of the valve shaft, said further passage means functioning to conduct said fuel flow, which has reached above the valve shaft, to the lower central surface area of the throttle'valve' while turning the-flow the state of liquid along the inner wall surface of the induction pipe toward the combustion chambers of the engine, is all captured by the passage means and caused to flow downwardly circumferentially along said passage means under the influence of its self-weight or suctionforce produced in the in
  • the arrangement of the invention warrants that all the volume of fuel discharged from the ports as not-atomized or in the state of liquid be completely atomized through the lower valve gap before leaving the induction pipe of the carburetor, whereby avoiding the prior art problems of inadvantageously supplying some amount of liquid fuel into the associated engine cylinders.
  • the invention is in effect advantageous in that because of no liquid fuel being takenin the engine cylinders it is possible to set the desired air-fuel ratio with a fuel mixture far leaner than that in the prior art carburetor which has needed an excessive supply of fuel, thereby deterimental substances such as I-IC, CO, etc. involved in the exhaust gas are significantly reduced in quantity.
  • the invention has advantages of reduction in fuel consumption, stabilities in the engine operation,
  • said passage means functioning to prevent fuel discharged though the idle port from flowing along the upper inner engine as well as its starting characteristic-under cold conditions.
  • FIG. 8 is an enlarged section of the same arrangement however according to a fourth embodiment of the invention.
  • FIG. 9 is also an enlarged section of the same arrangement still however according to a fifth embodiment of the invention.
  • FIG. is a perspective view of the valve and shaft assembly according to the fifth embodiment of the invention.
  • FIG. 11 is an enlarged section of the arrangement around the valve according to a sixth embodiment of the invention
  • FIG. 12 is a section taken along the line XII XII of FIG. 11;
  • FIG. 13 is a section taken along the line of FIG. 11 I
  • FIG. 14 is a section taken along the line XIV XIV of FIG. 11;
  • FIG. is a perspective view of the valve and shaft assembly according to the sixth embodiment of the invention.
  • FIGS. 1, 2, 3 and 4 show a carburetor and its portion incorporating the first embodiment of the invention.
  • the carburetor l principally includes: a substantially horizontally extending air intake pipe 2; a
  • XIII XIII piston valve 5 for varying the sectional area of the Venturi portion 4 in response to negative pressure produced in the induction pipe 3 by the manifold suction of the associated engine (not shown) a float chamber 6 for fuel storage with a constant fuel level; and a throttle valve 7 which is operatively connected to the accelerator pedal (not shown) for rotation to vary the valve opening in the induction pipe 3.
  • the piston valve 5 is slidably supported in a piston valve cylinder 8 which is integrally formed withthe intake pipe 2.
  • the piston valve 5 is provided at the top with a diaphragm 9 secured in air-tight manner, forming a suction chamber 10 with a casing 11.
  • a coil spring 12 is anchored on the casing 11 so as to urge the piston valve 5 in the downward direction.
  • the bottom of the piston valve 5 provides a surface portion 14 being tapered downwardly as viewed from the air intake side 13, a horizontal surface portion 15, an orifice 16 through which air in the suction chamber 10 is drawn out by negative pressure produced in the Venturi portion 4, and a jet needle 18 which is adapted to be thrusted deep in a coworking needle jet 17.
  • the float chamber 6 is formed by the lower wall of the air intake pipe 2 and a float chamber casing 19.
  • the float chamber 6 stores in it a volume of fuel with a constant fuel level 22 attained by means of a needle valve and a float 21.
  • a supporting block 23 having a port opened in the chamber is provided integral with the float chamber case 19, supporting a main jet 24 and the needle jet 17 in alignment with the piston valve 5.
  • the needle jet 17 is opened in the Venturi portion 4 in the intake pipe 2.
  • the supporting block 23 supports a pilot jet 26 in a passage 37 branched from above the main jet 24.'The pilot jet 26-has an opening 27 which is in communicationvia a passage 29 with an air jet 28 opened around the outer periphery of the air intake 13.
  • the pilot jet 26 is further communicated with an idle port 31 and bypass ports 33 through a passage 30 extending across the induction pipe 3.
  • the idle port 31 is opened on the inner upper wall surface of the induction pipe 3, in the vertical direction, and more specifically it is located slightly downstream of the position of the upper edge of the throttle valve 7 that is to be assumed when the valve 7, which is secured on a valve shaft 33 by screws 34, is closed.
  • the by-pass ports 32 are opened upstream of the idle port. Above the idle port, there is provided an adjustable screw 35 for control of air-fuel flow through the idle port 31.
  • a semicircumferentially extending passage means 36 in the form of a groove having a substantially U- shaped section opened in the induction pipe, which groove extending from adjacent one journal portion 33A, facing downstream, of the valve shaft 33 toadja cent the other journal portion 33A, facing downstream, of the shaft, in the assumed position of the valve being closed, after passing downstream the idle port 31.
  • the journal portions 33A of the valve shaft 33 are of circular section, and the intermediate portion 338 of the shaft exposed in the induction pipe 3 is flattened by reducing the thickness by one-fifth to one-fourth of the diameter of the journal portion so as to constitute two parallel plane surfaces 39A, 39B symmetrical with each other in respect of the shaft axis. While the surface 39A facing upstream extends fully across the bore of the induction pipe 3, the surface 398 is bounded at each lateral end by further passage means in the form of an inclined step surface 40 which extends with an angle of in respect to the shaft axis starting from slightly outside the respective lower end of the above described semicircumferential groove 36 while terminating at the inner location about one-sixth of the induction pipe diameter apart from the pipe wall.
  • This step surface 40 is substantially vertical with respect to the surface 398. Both. of the two convergent passage means 40 thus constitute extensions of the above described semicircumferential groove 36. Between the two plane surfaces 39A, 39B, is formed a slot 41 intowhich the throttle valve 7 is inserted and secured by fastening screws 34. The throttle valve 7 is in operative association with the accelerator means (not shown) through the valve shaft 33. With the accelerator means set for idling, the throttle valve 7 is closed with minor gaps 42 provided on the upper and lower ends of the valve. j 7
  • each passage means 40 since the inner or lower end of each passage means 40 is located with a distance L from theinner wall of the induction pipe 3, the fuel will never attach on the inner surface ofthe induction pipe 3 while falling-along the surface of the throttle valve 7. Also, it is to be noted that although the convergent passage means 40 have been described as inclined by 45, this inclination may alternatively be from to 60C, depending on the application circumstances. However, the range from to 65 has generally proved most desirable in terms of compatibly securing a smooth flow of fuel on the inclined step surface and prevention of the fuel being drifted to the inner wall surface of the pipe 3.
  • FIGS. 5 and 6 show the second embodiment of the invention, wherein only the arrangement around the induction pipe is shown as other parts or portions are the same as described with reference to the first embodiment.
  • the semicircumferentially extending passage means 36A provided around the inner wall surface of the induction pipe 3 is in the form of a groove having a U- shaped section extending from above one journal portion of the valve shaft 33 to above the other journal portion of the shaft 33.
  • this groove is shaped such that for the upper half length of the groove, the sidewall 136A on the upstream side shows a gradual increase of angle relative to the inner surface of the induction pipe 3, as shown, from the top toward the middle of the groove length, in a manner that the side wall 136A forms-a curved surface having gradually changing slopes relative to the bottom, while the side wall 1368 on the downstream side and the side wall 136A extending over the lower half length of the groove are substantially perpendicular to the inner surface of the pipe 3.
  • the valve shaft in this embodiment is uniformly of circular section, securing the throttle valve 7 inserted into a slot formed longitudinally, centrally of the shaft by means of fastening screws 34.
  • valve shaft 33 is provided at each journal portion with passage means 64in the form of an inclined through-hole starting from the juncture between the downstream surface of the throttle valve and the upper portion of the shaft journal, toward the lower center ofthe valve, through the shaft.
  • passage means 64 in the valve closed position, the upper opening 65 of each through-hole 64 is adapted to be located for substantially continuous communication with the respective lower end of the passage means 36A, and each through-hole 64 extends over both axial sides of the junction 66 between the valve shaft and the inner surface of the induction pipe 3.
  • the inclination of each passage 64 is'set at around 45 in angle with respect to the shaft axis. 3 I
  • passage means' in the form of substantially semicylindrical conducting member 36B which is fittingly inserted in the induction pipe 3 and secured by a bolt 136C.
  • the conducting member 368 has its upstream edge which extends semicircumferentially between both journal portion areas of the valve shaft and forms a surface 136D substantially perpendicular to the inner surface of the induction pipe 3.
  • further passage means on the valve and shaft assembly in the form of a valve supporting member 50 having a trapezoid section. ltsbevel side surfaces form minor angles with the downstream surface of the valve 7.
  • FIG. '8 shows the fourth embodiment of the invention, which is the same as the third embodiment except ing the sectional configuration of the upstream edge of the passage means.
  • the semi-cylindrical passage means 36C has the upstream edge of trough-like section opened to the upstream with the inner extreme end 136F projecting a little more upstream than the outer extreme end 136E.
  • This arrangement secures reliable conduction of the fuel flow in a desired and positive manner as well as a quick flow of the liquid fuel by the aid of an air stream easily occurring along the passage means.
  • FlGS. 9 and 10 show the fifth embodiment which is the same as the previous embodiments of FIGS. 1 through 4 excepting passage means provided on the throttle valve, valve shaft and inner wall of the induc- -tion pipe.
  • passage means 36D consists of a groove 51 according to the first embodiment and a semi-cylindrical member 52 similar to the member 368 of the third embodiment.
  • the valve shaft 53 having journal portions 53A of circular section provides the intermediate portions 533 adapted to be exposed in the induction pipe 3.
  • This intermediate portion 53B is reduced in thickness from the downstream side 'so as to be of crescent shape in section, and the throttle valve 7A is secured on the surface 538 by screws 34.
  • valve shaft Around the juncture between the valve 7A and the innerend of each journal portion 53A, the valve shaft provides a cut-out portion 54 of plane surface perpendicular to the surface of the valve 7A and inclined by 45 with respect to the axis of the shaft 53.
  • each cut-out portion 54 is positioned in continuation with the respective lower end of the above described passage means 36D. Also, the
  • valve 7A is provided with a couple of passage means 55 each in the form of a substantially triangular plate member which has a thickness corresponding to that of the valve and a main side surface 56 being inclined 45 with respect to the shaft axis.
  • the upper end of the surface 56 is formed in continuation with the respective cut-out portion 54.
  • the lower end 57 of the surface 56, or plate member 55 terminates with a distance of about one-fourth of the vertical center height of the valve apart from the bottom of the valve.
  • the cut-out portions 54 and the surfaces 56 of the plate member 55 serve to guide the flow of liquid fuel to be delivered onto the surface of the valve 7A in a widely dispersed pattern, as best shown in FIG. 10.
  • the liquid fuel undergoes a significantly wide range of atomization at the valve gap 42.
  • passage means 36E is constituted with a groove 58 formed around the inner wall surface of the induction pipe 3 and a further groove 59 .formed at the upstream edge of a semi-cylindrical member 136G so that substantially tubular passage means be provided. As best shown in FIGS.
  • the grooves 58 and 59 show the same radius in section if taken along the same section, but these radii are reduced gradually toward the lower end of the tubular passage so that atop the passage, the tubular inner space 36E be maximum opened, in the upstream direction, with the projection edge 60 of the member 1366 spaced most apart from the groove 58, while the inner space 365 is closed with the projection 60 beingin contact with the inner wall surface of the induction pipe 3, at the level one-fourth of the passage length apart from the bottom. As seen in FIG.
  • valve shaft 61 with journal portions 61A and the intermediate portion 618 similar to the fifth embodiment is provided with step surfaces 62, 62 each with 45 inclination, perpendicular to the upstream surface of the valve 7 similarly secured on the intermediate portion 61B by screws 34.
  • the upper end of each step surface 62 is located within the journal portion 61A, extending beyond the lower end of the respective passage means 36E.
  • a carburetor for internal combustion engines of the type comprising an induction pipe horizontally arranged downstream of the Venturi portion, a butterflytype throttle valve journal supported by said induction pipe, and an idle port on the upper wall of the induction pipe being opened in the induction pipe adjacent the position of the top peripheral edge of the throttle valve to be assumed when the valve is closed or slightly opened, characterized by the provision of passage means formed around the inner wall surface of the in-' duction pipe, said passage means functioning to prevent fuel discharged through the idle port from flowing along the upper inner wall surface of the induction pipe in the downstream direction and conduct said flow of fuel downwardly to and above the junctures between a valve shaft for supporting said throttle valve and the induction pipe wall, and further passage means formed around the journal portions of the valve shaft, said further passage meansfunctioning to conduct said fuel flow, which has reached above the valve shaft, to the lower central surface area of the throttle valve, while turning the flow apart from the inner wall of the induction pipe.
  • a carburetor for internal combustion engines characterized by that when the throttle valve assumes the closed or slightly opened position, said passage means provided around the inner wall surface of the induction pipe is such arranged as extending from above one journal portion of the valve shaft and behind the downstream surface of the throttle valve, to above the other journal portion of the valve shaft, passing closely downstream of said idle port;
  • a carburetor for internal combustion engines characterized by that said passage means provided around the inner wall surface of the induction pipe consists of a groove formed on the inner wall surface of the induction pipe.
  • a carburetor for internal combustion engines characterized by that said groove is of substantially U-shaped section opened inwardly of the induction pipe.
  • a carburetor for internal combustion engines characterized by that said passage means provided on the inner wall surface of the induction pipe consists of a member secured on the inner wall surface of the induction pipe.
  • a carburetor for internal combustion engines acstream side is substantially perpendicular to the inner wall surface of the induction pipe.
  • a carburetor for internal combustion engines characterized by that said member secured on the inner wall surface of the induction pipe has the outer circumferential surface substantially identical to the inner circumferential surface of the induction pipe, the end surface of said member on the upstream side forming, in cooperation with the inner wall surface of the induction pipe, a groove of U- shaped section opened upstream.
  • a carburetor for internal combustion engines characterized by that said passage means provided around the inner wall surface of the induction pipe consists of a groove formed on the inner wall surface of the induction pipe and a semicylindrical member secured on the inner wall surface of the induction pipe in such a manner that over the length of the groove, at least a half width of the opening, on the upstream side, of the groove opened inwardly is in direct communication with the interior of the induction pipe, the outer circumferential surface of said member being substantially identical to the inner circumferential surface of the induction pipe.
  • a carburetor for internal combustion engines characterized by that said groove is of v substantially U-shaped section while said semicylindrical member being arranged such that the end surface of said member on the upstream side being substantially perpendicular to the inner wall surface of the induction pipe, and over the length of the groove, a half width of the opening on the downstream side being closed by said member.
  • a carburetor for internal combustion engines characterized by that said groove provided around the inner wall surface of the induction pipe and a groove formed on the outer side of the upstream end portion of said semi-cylindrical member in combination forms a passage generally closed such that over the upper half length, said passage is'opened in the upstream direction with a gradual increase of the opening toward the top. of the passage.
  • a carburetor for internal combustion engines characterized by that said further passage means on the-valveshaft each extends from a portion of the inner wall surface of the induction pipe, where the outer circumferential edge of said valve shaft intersectsthe induction pipe, to the downstream surface of said throttle valve spaced inwardly from said inner wall surface of the induction pipe.
  • a carburetor for internal combustion engines characterized by that said further passage means on the valve shaft each is substantially perpendicular to the downstream surface of said throttle valve while said passage means each consists of a plane surface which is adapted to turn upward when said throttle valve closes.
  • a carburetor for internal combustion engines characterized by that said throttle valve -is supported by the valve shaft as being inserted through an axial opening provided on a portion of said valve shaft extending within the induction pipe, said axial opening having the width corresponding to the thickness of said throttle valve and the length corresponding to the minor diameter of said valve, said portion of the valve shaft, at the downstream side of the valve, having a crosssection of trapezoid with a plane 10 surface parallel to the downstream surface of the throttle valve, while the inner end surface of each journal portion projecting inwardly of the induction pipe so as to form passage means on the valve shaft.
  • a carburetor for internal combustion engines characterized by that said portion of the valve shaft exposed within the induction pipe has a semicircular section with the chord extending at the downstream side, said throttle valve being secured on said chord containing surface of the valve shaft, while the inner end surface of each journal portion projecting inwardly of the induction pipe so as to form the passage means on the valve shaft.
  • a carburetor for internal combustion engines characterizedby that saidpassage means consists of passages of circular section formed through the valve shaft so that the outer extreme end of the upper opening of each passage formed on the valve shaft is positioned outwardly of the inner wall surface of the induction pipe and the inner extreme end of said upper opening of each passage is positioned inwardly of the'inner wall surface of the induction pipe, while the outer extreme end of the lower opening of each passage is positioned inwardly of the inner wall surface of the induction .pipe.
  • a carburetor for internal combustion engines characterized by that said throttle valve is in continuous communication with said further passage means on the valve shaft, while said throttle valve being provided on the downstream surface thereof with passage means for conducting a flow of liquid fuel, which has been conducted onto the throttle valve by said passage means provided on the induction pipe and valve shaft, to the downstream surface of said throttle valve spaced inwardly from the inner wall surface of the induction pipe.
  • a carburetor for internal combustion engines characterized by that said passage means provided on thedownstream surface of the throttle valve consists of members-each having a plane top surface which continuously extends from the inner vend portion of said further passage means on the valve shaft in the diagonal downward direction toward the lower inner central portion of the induction pipe, the inner end of each member being positioned inwardly of the outer peripheral edge of the throttle valve.
  • a carburetor for internal combustion engines characterized by that said passage means provided around the inner wall surface of the induction pipe consists of a groove having a substantially U-shaped section opened inwardly of the induction 20.
  • a carburetor for internal combustion engines according to claim 16 characterized by that said passage means provided around the inner wall surface of the induction pipe consists of agroove of substantially U- shaped section opened v inwardly of the pipe, said groove of U-shaped section being such shaped over the length thereof that one side wall surface of said groove on the upstream side has a gradual increase of gradient formed from the inner wall surface of the induction pipe to the bottom surface of the groove, while the varying rate of said gradient being increased toward the lowerportion of the induction pipe.
  • a carburetor-for internal combustion engines characterized by that said passage means provided around the inner wall surface of the in- 1 1 duction pipe has a substantially U-shaped section opened'inwardly of the induction pipe, while there being provided a semi-cylindrical member having the outer circumferential surface substantially identical to the inner circumferential surface of the induction pipe, the end surface of said member on the upstream side being substantially perpendicular to the inner wall surface of the induction pipe, said member being positioned so as to substantially close a half width of the groove opening, on the downstream side, over the length of the groove.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
US417674A 1972-11-24 1973-11-20 Carburetor for internal combustion engines Expired - Lifetime US3867487A (en)

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JP1972134551U JPS528883Y2 (enrdf_load_stackoverflow) 1972-11-24 1972-11-24

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US3867487A true US3867487A (en) 1975-02-18

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US417674A Expired - Lifetime US3867487A (en) 1972-11-24 1973-11-20 Carburetor for internal combustion engines

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US (1) US3867487A (enrdf_load_stackoverflow)
JP (1) JPS528883Y2 (enrdf_load_stackoverflow)
DE (1) DE2358477A1 (enrdf_load_stackoverflow)
GB (1) GB1446467A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044080A (en) * 1973-12-28 1977-08-23 Yamaha Hatsudoki Kabushiki Kaisha Carburetor
US4117813A (en) * 1974-08-12 1978-10-03 Yamaha Hatsudoki Kabushiki Kaisha Internal combustion engine and method of operating it
US5874028A (en) * 1997-08-11 1999-02-23 Liang; Shih-Chuan Structural improvement on a carburetor for motorcycles
US6299144B1 (en) * 2000-03-07 2001-10-09 Marc W. Salvisberg Carburetor device with additional air-fuel flow apertures
US6431527B1 (en) * 1999-11-15 2002-08-13 Walbro Corporation Rotary throttle valve carburetor
US6499726B2 (en) * 1999-11-04 2002-12-31 Tecumseh Products Company Engine having carburetor with bridge circuit
US20090025672A1 (en) * 2007-07-26 2009-01-29 Nissan Motor Co., Ltd. Intake air noise adjuster

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135720Y2 (enrdf_load_stackoverflow) * 1980-08-26 1986-10-17

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1580634A (en) * 1921-04-02 1926-04-13 Ball And Ball Carburetor Compa Reatomizer
US1625572A (en) * 1918-09-04 1927-04-19 Albert G Dickinson Carburetor
US1785501A (en) * 1928-02-17 1930-12-16 Advance Rumely Co Method of and apparatus for reatomizing fuel
US2328736A (en) * 1939-11-24 1943-09-07 Bendix Aviat Corp Nonicing throttle
US3393984A (en) * 1967-02-14 1968-07-23 Franklin O. Wisman Fuel system components
US3414242A (en) * 1965-12-30 1968-12-03 Bouteleux Rene Device for balanced homogenization of air and liquid fuel mixtures in internal combustion engines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1625572A (en) * 1918-09-04 1927-04-19 Albert G Dickinson Carburetor
US1580634A (en) * 1921-04-02 1926-04-13 Ball And Ball Carburetor Compa Reatomizer
US1785501A (en) * 1928-02-17 1930-12-16 Advance Rumely Co Method of and apparatus for reatomizing fuel
US2328736A (en) * 1939-11-24 1943-09-07 Bendix Aviat Corp Nonicing throttle
US3414242A (en) * 1965-12-30 1968-12-03 Bouteleux Rene Device for balanced homogenization of air and liquid fuel mixtures in internal combustion engines
US3393984A (en) * 1967-02-14 1968-07-23 Franklin O. Wisman Fuel system components

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044080A (en) * 1973-12-28 1977-08-23 Yamaha Hatsudoki Kabushiki Kaisha Carburetor
US4117813A (en) * 1974-08-12 1978-10-03 Yamaha Hatsudoki Kabushiki Kaisha Internal combustion engine and method of operating it
US5874028A (en) * 1997-08-11 1999-02-23 Liang; Shih-Chuan Structural improvement on a carburetor for motorcycles
US6499726B2 (en) * 1999-11-04 2002-12-31 Tecumseh Products Company Engine having carburetor with bridge circuit
US6513794B2 (en) 1999-11-04 2003-02-04 Tecumseh Products Company Engine having carburetor with bridge circuit
US6431527B1 (en) * 1999-11-15 2002-08-13 Walbro Corporation Rotary throttle valve carburetor
US6299144B1 (en) * 2000-03-07 2001-10-09 Marc W. Salvisberg Carburetor device with additional air-fuel flow apertures
US20090025672A1 (en) * 2007-07-26 2009-01-29 Nissan Motor Co., Ltd. Intake air noise adjuster
US8186323B2 (en) * 2007-07-26 2012-05-29 Nissan Motor Co., Ltd. Intake air noise adjuster

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DE2358477A1 (de) 1974-06-12
JPS4989524U (enrdf_load_stackoverflow) 1974-08-02
JPS528883Y2 (enrdf_load_stackoverflow) 1977-02-24
GB1446467A (en) 1976-08-18

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